/*
 * MIT License
 *
 * Copyright (c) 2023 北京凯特伟业科技有限公司
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.je.bpm.core.converter.converter.parser;

import com.je.bpm.core.converter.constants.BpmnXMLConstants;
import com.je.bpm.core.converter.converter.child.ActivitiEventListenerParser;
import com.je.bpm.core.converter.converter.child.ExecutionListenerParser;
import com.je.bpm.core.converter.converter.util.BpmnXMLUtil;
import com.je.bpm.core.model.BaseElement;
import com.je.bpm.core.model.BpmnModel;
import com.je.bpm.core.model.ExtensionElement;
import com.je.bpm.core.model.process.SubProcess;
import com.je.bpm.core.model.process.Process;
import javax.xml.stream.XMLStreamReader;
import java.util.List;

/**
 *
 */
public class ExtensionElementsParser implements BpmnXMLConstants {

    public void parse(XMLStreamReader xtr, List<SubProcess> activeSubProcessList, Process activeProcess, BpmnModel model) throws Exception {
        BaseElement parentElement = null;
        if (!activeSubProcessList.isEmpty()) {
            parentElement = activeSubProcessList.get(activeSubProcessList.size() - 1);
        } else {
            parentElement = activeProcess;
        }

        boolean readyWithChildElements = false;
        while (readyWithChildElements == false && xtr.hasNext()) {
            xtr.next();
            if (xtr.isStartElement()) {
                if (ELEMENT_EXECUTION_LISTENER.equals(xtr.getLocalName())) {
                    new ExecutionListenerParser().parseChildElement(xtr, parentElement, model);
                } else if (ELEMENT_EVENT_LISTENER.equals(xtr.getLocalName())) {
                    new ActivitiEventListenerParser().parseChildElement(xtr, parentElement, model);
                } else if (ELEMENT_POTENTIAL_STARTER.equals(xtr.getLocalName())) {
                    new PotentialStarterParser().parse(xtr, activeProcess);
                } else {
                    ExtensionElement extensionElement = BpmnXMLUtil.parseExtensionElement(xtr);
                    if (parentElement != null) {
                        parentElement.addExtensionElement(extensionElement);
                    }
                }

            } else if (xtr.isEndElement()) {
                if (ELEMENT_EXTENSIONS.equals(xtr.getLocalName())) {
                    readyWithChildElements = true;
                }
            }
        }
    }
}
